(similar to other question but i need exact answers) can you explain where they aare acting because i have to do a diagram. & i know this may be a stupid question
2006-08-16 22:31:26 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Physics
i need 4 forces
2006-08-16 22:33:03 · update #1
i had problem with the 4th force, but i got it now i think,
1 gravitational force acting on its weight
2 air resistance acting on its surface
3 centripedal force since the coin is in circular motion acting toward the centre of the coin
4 magnetic force this force is very week, but the motion of the coin which the coin itself consist of full of electrons do generatation a very week magnetic field while rotating(i am not sure about this one, but it's the most appropriate i can think of) and remember the coin is made of some magnetic metals such as nickel, so the coin itself will interact with the earth's magnetic field while turning.^^
2006-08-16 22:41:23 · answer #1 · answered by lippy19850528 3 · 0⤊ 1⤋
Coin Flick
2016-12-14 14:47:12 · answer #2 · answered by ? 4 · 0⤊ 0⤋
As you're flicking it, there are 4 forces.
1. Gravity
2. The force of your finger flicking the coin, giving it angular momentum and upward momentum (and possibly forward momentum if you don't flick it straight up), aka applied force.
3. Wind resistance (aka friction with the air).
4. Friction on the coin as it slides across your finger.
Once it's airborne (left your finger) you have only two forces.
1. Gravity.
2. Friction (wind resistance slowing the coin's spinning and also it's ascent/descent).
If there is a breeze, then the wind is also acting as a force, for 3 forces.
2006-08-16 23:19:17 · answer #3 · answered by 006 6 · 0⤊ 0⤋
1. Applied force - An applied force is a force which is applied to an object by a person or another object. If a person is "flipping" a coin, then there is an applied force acting upon the object. The applied force is the force exerted on the coin by the person.
2. Gravity Force - The force of gravity is the force at which the earth, moon, or other massively large object attracts another object towards itself. By definition, this is the weight of the object. All objects upon earth experience a force of gravity which is directed "downward" towards the center of the earth. The force of gravity on earth is always equal to the weight of the object as found by the equation:
Fgrav = m * g
3. Air Resistance Force - The air resistance is a special type of frictional force which acts upon objects as they travel through the air. Like all frictional forces, the force of air resistance always opposes the motion of the object. This force will frequently be neglected due to its negligible magnitude. It is most noticeable for objects which travel at high speeds (e.g., a skydiver or a downhill skier) or for objects with large surface areas.
4. Normal Force - The normal force is the support force exerted upon an object which is in contact with another stable object. (when the coin hits the ground or is in your hand) For example, if a coin is resting upon a surface, then the surface is exerting an upward force upon the coin in order to support the weight of the coin. On occasions, a normal force is exerted horizontally between two objects which are in contact with each other.
2006-08-16 23:07:37 · answer #4 · answered by ?man 2 · 0⤊ 0⤋
The main force acting on it is Gravity (which will make it fall eventually).
The second important one is Air friction, nonetheless, the coin keeps spinning because every mass has a property called INERTIA (the reluctance to start moving or stop moving once in motion, in this case, the reluctance of the coin to stop spinning)
Assuming you spun a coin in space, you are more likely (depending how far you are from other matter such as planets, comets, stars etc) to see it spin continuously in air, well in space, therefore won't get head or tail! Do not bet using a coin in space because you might end up fighting with the person who is with you far in no man's land (or should i say no man's space!)
2006-08-16 23:26:31 · answer #5 · answered by AlphaOmega 2 · 0⤊ 0⤋
I'm no physicist, but I know gravity is acting on it! The force of the initial flick of course, air resistance as it travels through the air, and I give up on the last one. I really have no clue I'm just guessing!
2006-08-16 22:39:13 · answer #6 · answered by kaloptic 5 · 0⤊ 1⤋
Gravity and air resistance. That's two.
2006-08-16 22:45:48 · answer #7 · answered by helene_thygesen 4 · 0⤊ 0⤋
dont forget angular momentum (not really a force)
ok there is the force from your finger flip...1
gravity...2
wind?... 3
movement of the earth or the train you are on, etc...?....4
(this wont count if you are in a spaceship)
centripital force?.... (back to angular momentum)...4?
2006-08-16 22:38:39 · answer #8 · answered by duhman 3 · 0⤊ 1⤋
Its weight (Gravity)
Friction (from air)
Wind forces if there are any
2006-08-16 22:36:53 · answer #9 · answered by blind_chameleon 5 · 0⤊ 0⤋
gravitationalforce only acts when a body is suspended in air
2006-08-16 22:37:44 · answer #10 · answered by Anonymous · 0⤊ 1⤋